We're seeing some super low fares to Europe on Delta, Air France, and KLM from United hubs like Chicago, Houston, San Francisco, Washington DC, and Denver.

Travel is valid throughout the year with some scattered dates for peak summer.

These fares could vanish at any time, so if something should catch your eye, better book quickly.

Fares include:

San Francisco to Luxembourg $453 round-trip

San Francisco to Brussels $431 round-trip

Washington DC to Brussels $431 round-trip

Chicago to Geneva $487 round-trip

Washington DC to Zurich $433 round-trip

Houston to Geneva $472 round-trip

Houston to Brussels $431 round-trip

Denver to Munich $482 round-trip

For a complete look at what's available, visit our fare listings for Brussels, Zurich, Geneva, Frankfurt, Munich, and Luxembourg.